Airbrator
BinMaster: Division of Garner Industries
7201 N. 98th St., Lincoln, NE 68507
402-434-9102 • email: info@binmaster.com
www.binmaster.com
927-0116 Rev A
1212
AIRBRATOR
AIRBRATOR
THE AIR PAD WITH AERATION & VIBRATION
Features:
- Economical
- Vibratory action promotes material flow
- Durable construction
- Use with granular or powdered material
- Easy installation
- Stainless steel shaft
- Self-cleaning
- Food grade
- Suitable for abrasive materials
- Use in any type of silo or bin
- Use low or high pressure air
- Rated to 250˚F
SOLVES FLOW PROBLEMS WITH MANY APPLICATIONS AND MATERIALS
SILOS
RAILCARS & TRUCKS
BINS & HOPPERS
DUST COLLECTORS &
BAG DUMP STATIONS
RAILPANS
ALUMINA
ASH
BAG HOUSE DUST
BARLITE
BENTONITE
CEMENT
927-0116 Rev A
CONVEYING VESSELS
CLAY
CACIUM CARBONATE
CORNSTARCH
CEMENT CLINKER
DIATOMACEOUS EARTH
FLY ASH
FLOUR
FLOUROSPAR
GYPSUM
LIME
PERLITE
PVC RESIN
SALT
SAND
SODA ASH
SUGAR
SOUP POWDER
TALC
....AND MORE
1212
Do you have problems getting your bulk
material to consistently flow from your
silos and bins?
Is your material sticky or have a high
angle of repose?
Have you tried aeration and found your
material continues to hang up or bridge?
The BinMaster Airbrator Air Pad will
help you economically solve these and
other common material flow problems.
AERATION PLUS VIBRATION
Airbrator combines aeration and vibration
to solve even the most difficult material flow
applications. The special design creates a
vibration as the air flows between the pad’s
boot and bin wall. This provides a very effective flow aid for all types of dry products. Plus,
Airbrator pads do not require a specific air
pressure for operation. You may use blower
air from as low as 5 PSIG to high-pressure
air up to 60 PSIG.
OPERATION
AIR ON
CEN TER
SHAFT
RUBBER
PAD
BUILT-IN
CHECK VALVE
1 3/16
SEALING
WASHER
7/8
VESSEL
1 3/8
1/2-14 NPT AT END OF SHAFT
7/8-14 UNF T O PAD
7/8-14 UNF
NUT
When the air is removed
from the boot, the pressure of the material and
the design of the boot
forces the boot against
the side of the bin. This
prevents material from
getting under the boot
and into the air supply
line.
AIR CONSUMPTION
Airbrator pads are operated by pulsing air on and
off. The CFM required is calculated by multiplying the
cycle time per minute by the air flow at the supply times
the number of pads. For example, if using four Airbrator
pads with an on-time of two seconds, and an off-time
of 10 seconds, and a supply pressure of 20 PSIG, the
CFM is calculated as follows: 60 seconds per minute/12
seconds total cycle time = 5 cycles per minute x .53 (see
chart at 20 PSIG) x 4 pads = 10.60 CFM. The actual on/
off time is dependent on the application.
1/4-18 NPT
PART DESCRIPTION
1. 303 stainless steel aeration stud
2. 7/8” plated flat washer
3. 7/8-14 UNF plated hex nut
4. White sealing washer
5. White silicone pad rated at 400˚F
or white neoprene rated at 250˚F
Note: All pads are built to an ASTM standard
and are acceptable in food grade applications
as permitted by the FDA.
927-0116 Rev A
AIR OFF
Air is introduced in the
silo or bin through the
Airbrator pad. As the air
discharges in the material
it provides an aeration effect to fluidize the material.
The positive air pressure
keeps the material from
getting under the boot.
The air flowing under
the boot causes it to
vibrate. The vibration
of the boot helps move
material that has the
tendency to hang up
or bridge.
AIRBRATOR SPECIFICATIONS
4” O.D.
AIRBRATOR
AIRBRATOR AIR PADS
Cubic feet per aerator
Continuous
PSIG
CFM
Pulse time in seconds
1
2
3
60
55
0.93
1.83
2.75
50
40
0.67
1.33
2.00
40
30
0.50
1.00
1.50
30
20
0.33
0.67
1.00
20
16
0.27
0.53
0.80
15
13
0.22
0.43
0.65
10
10
0.17
0.33
0.50
5
5
0.08
0.17
0.25
When using internal thread
1212
AIRBRATOR SIZING
RECOMMENDATIONS
The Airbrator is a flow aid designed to ensure
product movement. The special design of the
airbrator causes a vibration as the induced air flows
between the pad’s boot and the bin wall. The result
of these two actions, aeration and vibration, provide
a very effective flow aid that can be used with all
types of dry products.
Determining the number of Airbrators and
their installations is subject to the material
flowability, hopper size, and hopper configuration. Placement of the Airbrator is essential to
its effectiveness.
Airbrators are to be placed in the cone or
transition portion of the bin or hopper. The diameter of the hopper or the bin determines the
number of Airbrators needed. Starting approximately 12” - 18” above the outlet of the bin or
hopper, install 3 - 4 Airbrators equally spaced.
Go up approximately 18” - 24” and install another
row of 4 - 6 Airbrators with staggered spacing of
the original row. Continue up the cone or transition in this manner, adding Airbrators to each
row as the diameter increases. Airbrators should
not be needed 2’ - 3’ prior to the transition area
where the hopper or bin wall goes to vertical. Airbrators can be placed farther apart in each row
as you work your way up the transition. Keep in
mind that material bridging occurs most often
from the outlet to 3/4 the way up the transition.
Two to six Airbrators are generally plumbed in
series. Manifold style plumbing is required to
ensure the proper working of each Airbrator if
you are installing six or more units in series.
AIRBRATOR AIR REQUIREMENTS
We recommend that the Airbrator be operated in
a pulsing mode with regulated air pressure. This will
conserve air consumption and increase the efficiency of the Airbrator. The specific air pressure and
pulse times for operating the Airbrator is determined
by the number of Airbrators and the type of material
being aerated. Sticky and clinging types of material
will require higher air pressure and a more rapid
pulse rate as opposed to a drier, relatively free flowing type of material. Higher air pressure and rapid
pulse rates create more vibration out of the Airbrator, thus keeping sticky materials broken up and
flowing freely. While drier materials don’t tend to
bridge as easily, a lower pressure of air and fewer
pulse times will keep this type of material
free flowing (See air consumption chart).
INSTALLATION OF
THE BINMASTER AIRBRATOR
To install the Airbrator, drill a 7/8” hole in the
hopper, bin or silo wall where material flow is a
problem. From the inside, place the stainless steel
shaft and silicone pad assembly through the walls.
From the outside, slip on the sealing washer, 7/8”
flat washer and 7/8-14 UNF hex nut. Tighten down
until snug. The unique design of the Airbrator allows the pad to be mounted on virtually any kind
of surface, but for best results, try mounting on a
clean and smooth surface. The Airbrator stainless
steel shaft has an 1/4” NPT internal thread and
1/2” NPT external thread for connecting to the air
supply.
TYPICAL INSTALLATION LAYOUT
BinMaster: Division of Garner Industries
7201 N. 98th St., Lincoln, NE 68507
402-434-9102 • email: info@binmaster.com
www.binmaster.com
927-0116 Rev A
1212
AIRBRATOR
OPERATION OF
THE BINMASTER AIRBRATOR